For the same reason I don't have a Medium account, a Substack account, a Guardian account, a Wired account etc.

I might pop in to read the content occasionally, but I'm not looking to interact with other users or comment on things.

I'd make an account if I did want to do so, but just to view content? Nah, why.

Any site that forces you to make an account to view content is doing it for their benefit, not yours.